21270500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2239}}^1$

素因数の和:2277

約数の個数: 48

約数和(自身を含む): 48921600

約数和(自身を除く): 27651100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2239, 2375, 4478, 4750, 8956, 9500, 11195, 22390, 42541, 44780, 55975, 85082, 111950, 170164, 212705, 223900, 279875, 425410, 559750, 850820, 1063525, 1119500, 2127050, 4254100, 5317625, 10635250, 21270500]

約数ペア:

[(1, 21270500), (2, 10635250), (4, 5317625), (5, 4254100), (10, 2127050), (19, 1119500), (20, 1063525), (25, 850820), (38, 559750), (50, 425410), (76, 279875), (95, 223900), (100, 212705), (125, 170164), (190, 111950), (250, 85082), (380, 55975), (475, 44780), (500, 42541), (950, 22390), (1900, 11195), (2239, 9500), (2375, 8956), (4478, 4750)]